MP-3 MICROPERIMETER is indicated for use as: Color retinography Fixation examiner Fundus-related microperimetry
Device Story
Microperimeter MP-3 is an ophthalmic diagnostic device used in clinical settings to assess retinal function. It captures 45-degree color fundus images using a color CCD camera and xenon flash, performs fixation examination by tracking eye position over time, and conducts fundus-related microperimetry to map visual sensitivity. The device features automated alignment and focusing using infrared LEDs. During microperimetry, an internal LCD projector displays stimuli and fixation targets; the patient responds via a button. The device computes response signals and displays results on an LCD. Clinicians use these outputs to evaluate fixation stability and visual sensitivity, aiding in the diagnosis and management of retinal conditions. The device offers wider background and stimulus luminance ranges compared to its predecessor, enhancing diagnostic flexibility.
Clinical Evidence
Bench testing only. Verification and validation testing confirmed the device meets functional specifications and performance requirements. Compliance with international standards (IEC 60601-1, IEC 60601-1-2, ISO 15004-1, ISO 15004-2, ISO 12866, ISO 10940) was documented.
Technological Characteristics
Ophthalmic diagnostic system; utilizes infrared LEDs for alignment/focusing and xenon flash for imaging. Features a color CCD camera and internal LCD projector for stimulus display. Connectivity includes LCD display for output. Complies with IEC 60601-1 (electrical safety), IEC 60601-1-2 (EMC), and ISO 15004-1/2 and ISO 12866 (light hazard).
Indications for Use
Indicated for color retinography, fixation examination, and fundus-related microperimetry in patients requiring ophthalmic imaging and visual sensitivity mapping.
Regulatory Classification
Identification
An ophthalmic camera is an AC-powered device intended to take photographs of the eye and the surrounding area.
Special Controls
*Classification.* Class II (special controls). The device, when it is a photorefractor or a general-use ophthalmic camera, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 886.9.
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three heads facing to the right. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 6. 2016
Nidek Co., Ltd. % Enrico Bisson Regulatory Affairs Manager Nidek Technologies Srl Via Dell' Artigianato, 6/a Albignasego (Padova), 35020 IT
Re: K152729
Trade/Device Name: Microperimeter MP-3 Regulation Number: 21 CFR 886.1120 Regulation Name: Ophthalmic Camera Regulatory Class: Class II Product Code: HKI, HPT Dated: April 19, 2016 Received: May 3, 2016
Dear Mr. Bisson:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug. and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Denise L. Hampton -S
for Malvina Eydelman, M.D. Director Division of Ophthalmic and Ear, Nose, and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.
510(k) Number (if known)
Device Name MP-3 MICROPERIMETER
Indications for Use (Describe) MP-3 MICROPERIMETER is indicated for use as: Color retinography Fixation examiner Fundus-related microperimetry
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED,
FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
This section applies only to requirements of the Paperwork Reduction Act of 1995.
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FORM FDA 3881 (1/14)
14119
14:33:30
Page 1 of 1
PSC Publishing Services (301) 443-6740 E
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Image /page/3/Picture/0 description: The image shows the logo for NIDEK, a company that specializes in eye care products. The logo features a stylized eye in a blue box, with the word "NIDEK" printed in bold, sans-serif font below the eye. The eye is white with a blue outline, and the pupil is represented by a white circle. The overall design is simple and modern, conveying a sense of trust and expertise in the field of ophthalmology.
Image /page/3/Picture/1 description: The image shows the text "NIDEK CO., LTD." in bold, followed by the address "34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan" in a smaller font size. The text appears to be a company name and address. The text is left-aligned and the background is a light color.
TEL +81-533-67-6611
FAX +81-533-67-6610
URL http://www.nidek.co.jp
This summary of the 510(k) premarket notification for the Microperimeter MP-3is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR § 807.92.
# 510(k) Notification
# GENERAL INFORMATION
# Applicant:
NIDEK CO., LTD. 34-14 Maehama, Hiroishi Gamagori, Aichi, 443-0038 Japan
| Contact Person: | Yoneji Mizuno | | | | | |
|-------------------------|--------------------------------------------------|--|--|--|--|--|
| Contact Title: | Corporate Officer and Senior Manager, Regulatory | | | | | |
| | Affairs Department | | | | | |
| Contact Phone Number: | +81-533-67-8901 | | | | | |
| Contact Fax Number: | +81-533-67-6628 | | | | | |
| E-mail: | yoneji_mizuno@nidek.co.jp. | | | | | |
| | | | | | | |
| Official Correspondent: | Enrico Bisson | | | | | |
| Contact Title: | Manager, Regulatory Affairs Department | | | | | |
| | Nidek Technologies Srl | | | | | |
| | Via dell'Artigianato, 6/A, | | | | | |
| | 35020 Albignasego (Padova) , Italy | | | | | |
| Contact Phone Number: | +39-049 8629200 | | | | | |
| Contact Fax Number: | +39-049 8626824 | | | | | |
| E-mail: | enricobisson@nidektechnologies.it | | | | | |
| | | | | | | |
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Image /page/4/Picture/0 description: The image shows the logo for NIDEK. The logo consists of a blue eye symbol above the word "NIDEK" in blue, block letters. To the right of the logo are the words "34-14, Mae" and "Manufacturer" in a smaller, sans-serif font.
| TEL | +81-533-67-6611 |
|-----|-----------------|
|-----|-----------------|
FAX +81-533-67-6610
http://www.nidek.co.jp
http://www.nidek.com
Date Prepared: September 4, 2015
Classification: 21 CFR§ 886.1120, Class II - 21 CFR§ 886.1605 , Class I
# Classification name:
Camera, Ophthalmic, AC-Powered Perimeter, Automatic, AC-Powered
# Product Code: HKI. HPT
Trade Name: Microperimeter MP-3
Generic/Common Name: MICROPERIMETER
Predicate Device MP-1 MICROPERIMETER (K023719) Nidek Technologies Srl
# Indications for use
The Microperimeter MP-3is indicated for use as: Color retinography Fixation examiner Fundus-related microperimetry
# Product Description
The Microperimeter MP-3performs the following basic functions:
Color retinography Fixation examiner Fundus-related microperimetry
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Image /page/5/Picture/0 description: The image shows the logo for NIDEK, a company that specializes in eye care products. The logo features a stylized eye in a blue square. The word "NIDEK" is printed in bold, sans-serif font below the eye. The logo is simple and modern, and the blue color is associated with trust and reliability.
34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan
Manufacturers, Exporters & Importers of Ophthalmic Instruments, and Opto-Electronics Instrumen
TEL +81-533-67-6611
FAX +81-533-67-6610
URL http://www.nidek.co.jp
http://www.nidek.com
#### Color retinography
This function allows a 45° image of the efthe eye fundus to be acquired without the need for a mydriatic agent. Auto alignment is performed while observing on the LCD, the front of the patient's eve illuminated by the eve front illumination LED (infrared light). After the alignment is roughly complete, the mode automatically changes to the fundus observation mode. The fundus of the patient's eye is illuminated by the fundus illumination LED (infrared light). After alignment and focusing are automatically performed on the fundus, white light from the xenon flash lamp is emitted on the fundus. The light reflected from the fundus is captured by the built-in color CCD camera for fundus image capture.
#### Fixation examiner
This function allows recording of the patient's fixation position changes in time and plotting of them onto a stable retinal image, acquired at the beginning of the exam. It is therefore an accurate survey of the stability of fixation itself.
# Fundus-related microperimetry
This function allows a visual sensitivity mapping that can be displayed using static perimetry principle. Stimuli and a fixation target are displayed by the built-in LCD projector. While focusing on the fixation target, the patient presses the response button to indicate that they saw a stimulus projected at the location and light intensity specified by the internal measurement program or the operator. The patient's response signals are computed by the device and measurement results are displayed on the LCD.
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Image /page/6/Picture/0 description: The image contains the logo for NIDEK. The logo consists of a blue square with a stylized eye inside, and the word "NIDEK" printed below the eye. To the right of the logo is the word "NIDEK" in large, bold letters. Below the word "NIDEK" is the address "34-14, Maehama" and the text "Manufacturers, Exporters".
Gamagori, Aichi 443-0038, Japan
ers of Ophthalmic Instruments, and Opto-Electronics Instruments
### Substantial Equivalence
The Microperimeter MP-3is substantially equivalent to the predicate device with regard to design, function, technological characteristics, intended use and performance characteristics.
The differences between the proposed and predicate device and justifications as to why these differences do not raise safety or efficacy concerns are as follows.
#### Differences in Color retinography
The subject device may perform alignment and focusing automatically, while the predicate device performs the same operation only manually.
#### Differences in Fixation examiner
The subject device may perform alignment and focusing automatically, while the predicate device performs the same operation only manually. The exam is performed in the same way, but the subject device has improved the result display.
#### Differences in Fundus-related microperimetry
The subject device may perform alignment and focusing automatically, while the predicate device performs the same operation only manually.
The background luminance can be set at 31.4 asb or 4 asb, while the predicate device allowed only 4 asb. The maximum stimulus luminance is 10,031.4asb, while the predicate device allows only 404asb. These larger ranges don't raise any safety issue.Compliances with both the light hazard recognized standards ISO 15004-1 and ISO 15004-2, and voluntary ISO 12866 standards are documented in Appendix 2.8 and 2.9.
The design modifications outlined in this Special 510(k) premarket notification do not (1) affect the intended use or the indication for use or (2) alter the fundamental scientific technology of the device. The proposed Microperimeter MP-3shares the equivalent indications for use, the same technological characteristics and the same principle of operation as the predicate devices. Therefore, based on the similarities between the devices, the
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Image /page/7/Picture/0 description: The image shows the logo for NIDEK. The logo features a stylized eye graphic in blue, with the word "NIDEK" printed below it in a sans-serif font. To the right of the logo are the numbers "34-14" and the word "Manufacturing".
i-cho, Gamagori, Aichi 443-0038, Japan
Importers of Ophthalmic Instruments, and Opto-Electronics Instruments
proposedMicroperimeter MP-3 is substantially equivalent to MP-1MICRO PERIMETER (K 023719).
# Testing in Support of Substantial Equivalence Determination
We have verified and validated that the Microperimeter MP-3meets its functional specifications and performance requirements, and complies with applicable international standards (IEC 60601-1, IEC 60601-1-2, ISO 15004-1, ISO 15004-2,ISO 12866, ISO 10940).
As mentioned, all necessary bench testing was conducted on the modifications, the addition of the proposed Microperimeter MP-3, to support a determination of substantial equivalence to the predicate device.
# Summary of Safety and Effectiveness
All the necessary safety tests were performed and documented. The results demonstrate that the subject device complies with applicable international standards (IEC 60601-1, IEC 60601-1-2, ISO 15004-1, ISO 15004-2,ISO 12866, ISO 10940) and it is safe as the predicate device. All the necessary performance tests in support of substantial equivalence determination were conducted. The tests demonstrate that the subject device is effective and performs as well as the predicate device. The minor differences between the devices do not raise any new issues of safety or efficacy.
Thus the proposed Microperimeter MP-3 is substantially equivalent to the predicate device.
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Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
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Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
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7. Product codes and the regulations tree
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What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.